Strengths: He tested well athletically at the NBA pre-draft camp and has improved his game steadily throughout his four seasons in college. He runs the floor well, a trait the Bulls typically prefer from their big men. He's a solid rebounder, a skill that typically translates from one level to the next.

Weaknesses: Like most big men, he would have to develop more strength. And his range is quite limited, so he would have to improve to become a pick-and-pop option. For his size, he isn't a great shot blocker.

Gorgui Dieng, 6-11, 230, Louisville

2012-13 stats: 9.8 points, 9.4 rebounds, 53.4 percent shooting.

Strengths: His large wingspan and quick jumping ability suggests he could be a prolific shot blocker. His passing ability belies his lack of experience as he came to the game late. He developed a solid mid-range jumper in his three seasons, capped by an NCAA title.

Weaknesses: His post game is largely ineffective, exacerbated by a broken wrist. Though he has gained considerable weight, he still lacks strength. At 23, he could be considered too raw and too old for some.

Jeff Withey, 7-0, 222, Kansas

2012-13 stats: 13.7 points, 8.5 rebounds, 58.2 percent shooting.

Strengths: His mobility and large wingspan should provide solid rim protection and a shot-blocking presence. He catches well for a big man and rarely takes bad shots. One scout said he's an excellent screener.

Weaknesses: He lacks aggressiveness on the offensive end and doesn't play comfortably in the post. He's a late bloomer, who didn't play much his first two of four seasons in college and, at 23, could have limited upside.